SWE & Snow Depth

Correlation between SWE and Snow Depth (November - April Water Year)

• SWE and snow depth are highly correlated across regions (>0.9)
• Generally, as snow depth and swe values get larger, they become less closely correlated

Carrizo

• Generally, January, February, and March swe and depth values are less correlated than other months

Each month has it’s own line:

plot_cor_month(car_swe_dpth, car_swedpth_r2, region = "Carrizo")

Chuska

• Generally, January, February, March, amd some April swe and depth values are less correlated than other months

Each month has it’s own line:

plot_cor_month(ch_swe_dpth, car_swedpth_r2, region = "Chuska")

Black Mesa

• Generally, January, February, and March swe and depth values are less correlated than other months

Each month has it’s own line:

plot_cor_month(bm_swe_dpth, car_swedpth_r2, region = "Black Mesa")

Navajo Mt

• March, January, and some december most often less correlated

Each month has it’s own line:

plot_cor_month(nm_swe_dpth, car_swedpth_r2, region = "Navajo Mountain")

Mt Powell

• Jn, Feb and March seem to be outliers

Each month has it’s own line:

plot_cor_month(mp_swe_dpth, car_swedpth_r2, region = "Mt Powell")

Defiance Plateau

• March seems to be least correlated

Each month has it’s own line:

plot_cor_month(dp_swe_dpth, car_swedpth_r2, region = "Defiance Plateau")

SWE-depth ratio - annual averaged metric

• Carrizo: 0.185

• Chuska: 0.206

• Black Mesa: 0.174

SWE-depth ratio monthly average:

• Generally, the ratio increases through the water year (starting at november). This corroborates the trend seen in the correlation graph where depth and swe becomes less correlated as the water year progresses

##   month black_mesa chuska carrizo
## 1     1      0.178  0.192   0.178
## 2     2      0.183  0.217   0.199
## 3     3      0.217  0.250   0.218
## 4     4      0.185  0.259   0.219
## 5    11      0.136  0.158   0.144
## 6    12      0.146  0.160   0.154

SWE and Snow depth (November - April Water Year)

• Generally, snow depth is much greater than SWE, but follows the same general patter

Depth scaled (depth*0.2) by swe/depth metric

• shows how well correlated SWE and snow depth are